Income Taxes - Schedule of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for credit losses	$ 39,064	$ 35,233
Operating lease liabilities	18,774	12,478
Net operating loss	1,158	1,370
Amortization of core deposit intangibles	403	0
Deferred compensation	4,390	5,484
Unrealized loss on debt securities	67,253	0
Unrealized loss on cash flow hedges	0	205
Other assets	4,891	8,301
Subtotal	135,933	63,071
Deferred tax liabilities:
FHLB stock dividends	(484)	(484)
Operating leases - right of use assets	(17,386)	(11,287)
Depreciation	(7,335)	(7,938)
Amortization of core deposit intangibles	0	(116)
Unrealized gain on equity securities	(2,297)	(2,407)
Unrealized gain on cash flow hedges	(313)	0
Unrealized gain on debt securities	0	(1,324)
Mortgage servicing rights	(44,667)	(30,098)
Goodwill	(15,338)	(13,743)
Other liabilities	(2,753)	(2,494)
Subtotal	(90,573)	(69,891)
Net deferred tax assets	$ 45,360
Net deferred tax liability		$ (6,820)